{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["GENE"], "input": "In patients with type II tumors , the pattern of lymphatic spread was primarily directed toward the paracardial , lesser curvature , and left gastric artery nodes ; esophagectomy offered no survival benefit over extended gastrectomy in these patients ."}
{"GENE": []}